I know what you mean by the static! I see it too, though most clearly in the dark. I've never been able to accurately describe it and I know my eyes are in tip top shape. I wish I could offer more information... I'm sure it has a technical name, but I haven't come across one yet. I've tried telling other people and they just look at me like "What...?" lol.
You're not alone, which may be comforting... we can be lost together. My only strong theory is that it is the vibration of everything around me? Everything vibrates to some degree... maybe it's light particles bouncing off these vibrations? Though, that doesn't make too much sense if I see it more clearly in the dark? o_O